CAJ | 학술논문

由于风电出力特性及电力系统运行约束等限制,电网接入大量风电时将会导致大量弃风.对风电与抽水蓄能协调运行以减少电网弃风的方式进行研究,在分析导致电网弃风的主要因素的基础上,充分考虑抽水蓄能的运行特性,以电网弃风最小为优化目标,建立风电和抽水蓄能协调运行的混合整数规划模型.基于实际电力系统的风电出力和负荷数据,在IEEE 30节点系统中对风电与抽水蓄能协调运行方式进行模拟.结果表明,所提出的优化模型能有效地模拟风电与抽水蓄能协调运行的过程;风电与抽水蓄能的协调运行方式对减少电网弃风具有显著的作用;对具有一定风电装机容量的电网,存在最优的抽水蓄能容量与之协调运行,使得电网弃风最小.
유우풍전출력특성급전력계통운행약속등한제,전망접입대량풍전시장회도치대량기풍.대풍전여추수축능협조운행이감소전망기풍적방식진행연구,재분석도치전망기풍적주요인소적기출상,충분고필추수축능적운행특성,이전망기풍최소위우화목표,건립풍전화추수축능협조운행적혼합정수규화모형.기우실제전력계통적풍전출력화부하수거,재IEEE 30절점계통중대풍전여추수축능협조운행방식진행모의.결과표명,소제출적우화모형능유효지모의풍전여추수축능협조운행적과정;풍전여추수축능적협조운행방식대감소전망기풍구유현저적작용;대구유일정풍전장궤용량적전망,존재최우적추수축능용량여지협조운행,사득전망기풍최소.
Integrating large amounts of wind energy into power system may cause wind curtailment due to wind power output characteristics and system operational constraints. In this paper, the impacts of coordinating with pumped storage on wind curtailment mitigation are studied. By analyzing factors inducing wind curtailment and taking the operational characteristics of pumped storage into consideration, a mixed integer programming model with optimization objective of minimizing wind curtailment was formulated to study this problem. With wind power and load data from real system, simulations were carried out with the modified IEEE 30-bus system, results show that the proposed optimization model simulates the coordination of wind and pumped storage effectively, wind curtailment is significantly decreased by adding pumped storage into the power system. There exists an optimal capacity of pumped storage to make the whole wind curtailment minimal.